Two different autosomal loci (t1 and t2) can render a mouse tailless. The tailless alleles at both loci are recessive. Homozygosity for the recessive allele at either of the loci or at both loci renders the mouse tailless. A tailless mouse homozygous for t1 is mated to a tailless mouse that is homozygous for t2 and produces F1 mice with NORMAL tails. What will be the ratio of tailed:tailless mice in the F2?

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.